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Contract OI history

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Jan 21, 2028 EXPIRATION

ACHR $2.00 Put

ACHR280121P00002000

Latest saved OI649Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ACHR $2.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 6493240 2026-10-02: 442 OI2026-10-05: 445 OI2026-10-06: 448 OI2026-10-07: 448 OI2026-10-08: 448 OI2026-10-09: 448 OI2026-10-13: 449 OI2026-10-14: 449 OI2026-10-15: 444 OI2026-10-16: 646 OI2026-10-21: 649 OI2026-10-23: 649 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ACHR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing6490
Oct 21, 2026649+3
Oct 16, 2026646+202
Oct 15, 2026444-5
Oct 14, 20264490
Oct 13, 2026449+1
Oct 09, 20264480
Oct 08, 20264480
Oct 07, 20264480
Oct 06, 2026448+3
Oct 05, 2026445+3
Oct 02, 2026442No prior observation